Water-heater.



A. BELER WATER HEATER.

APPLICATlON FILED IUNEB. 1916.

Patented ay 7,1918.

Witnesses Inventor Attorneys WATER-HEATER.

Toall whom it may concern:

Be it known that 1, Avon! BELER, a citizen of the United States, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Water-Heater, of which the following is a specification.

This invention relates to water heaters of that type in which a circulation of water through the heater is set up whenever the faucet or other valve at the point of consumption is opened, this circulation resulting in the turning on of the fuel so that the water containing coil or other receptacle will be quickly heated, to raise the temperature of the contents thereof.

In apparatus of this character as heretofore constructed, when the faucet has first been opened, cold water has been supplied until it has been displaced by the water heated in' the coil of the heater. Where only a small amount of hot water is required, it is thus necessary to wait until the hot water reaches the faucet, this resulting in considerable waste of water.

One of the objects of the present invention is to provide means whereby hot water will be instantaneously supplied to the faucet when opened and there will be no cold water in the apparatus between the faucet I and the heating coil.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it beingunderstood that changes in the precise embodiment of the invention herein disclosed, can be made within the scope of what is claimed, without departing from the spirit of the invention.

In the accompanying drawings the preferred form of the invention has been shown.

In said drawings Figure 1 is a view partly in elevation and partly in section through apparatus embodying the present improvements.

Fig. 2 is a section on line A-B Fig. 1 and showing one form of thermostat control which may be used in connection with the apparatus.

Referring to the figures by characters of reference T designates a thermostat of that Specification of Letters Patent.

stronger than the spring 16.

Patented May '1, 1918.

Application filed June 8, 1916. Serial No. 102,544.

type shown, for example, in Patent No. 1,126,177, issued to me on January 26,v 1915, although it is to be understood that other constructions of thermostat mechanism of a similar type may be used. In the con-' so that when said core is unseated from the stop 6, water can flow from pipe 1 into casing 2 and thence through the core 5 to the openings 8 and to the outflow pipe 3. The thermostat '1 includes a tubular member 9 having a high co-eliicient of expansion and along which is arranged a stem 10 of porcelain or other material which will not expand readily when subjected to heat. A. lever 11 is mounted at one end upon the stem 10 and is engaged at an intermediate point by a projection 12 carried by one end portion of the tubular member 9. This arm 11 is designed to actuate the stem 13 of a valve 14 located in the fuel supply pipe 15, said valve being provided with a spring 16 for unseating it. The valve is held normally upon its seat by a lever 17 which bears against the stem 13 and is held in such position by a spring 18 which is Another spring 19 is interposed between lever 11 and the tubular member 9 and serves to hold said lever pressed outwardly away from the member 9.

A stem 20 extends from the piston 4 and is designed to thrust against one arm of lever 17 so as to shift it against the action of its spring 18, thus to release .the valve 14 which will open under the action of spring 15. This operation takes place whenever the piston 4 is shifted longitudinally to permit the passage of fluid through the core 5 from pipe 1 to pipe 3. When the temperature of the fluid within the tubular member 9 rises to a predetermined degree, the expansion of said member v9' relative to the stem 10 will result in spring 19 thrusting the lever 11 against the shoulder 13 on stem 13 with the result that valve 14 will be shifted toward or upon its seat. Thus the flow the apparatus will be controlled.

he pressure controlled thermostat mechanism above described is only one of several types which might be used in connection of fuel to with the present apparatus.

1 of combustion, while the lower end of the flue is flared downwardly as indicated at 27 thus to partly house a supplemental coil 28 the end convolutions of which are connected to upper and lower portions respectively of the tubular member 9 as indicated at 29 and 30 respectively. A supplemental burner 31 is arranged under the supplemental coil 28 and is provided with a separate fuel supply pipe 32.

A service pipe 33 extends from the upper.

portion of the tubular member 9 to a faucet 34 at the point of consumption, and a return pipe 35 extends from this service pipe 33 at a point close to the faucet 34 and back to the lower portion of the tubular member 9.

Fuel is constantly supplied to the burner 31 and keeps the contents of the supplemental coil 28 heated. The products of combustion will ascend through the flue 25 without raising the temperature of the contents of the main coil 22 and will flow outwardly from the casing through the upper end of the flue. lhe heating of the contents of the supplemental coil will result in a constant circulation of the fluid from said coil through the pipe 29 and tube 9 to the service pipe 33, thence back to the coil by way of pipe 35, tubular member 9 and pipe 30. As this circulation is brought close to the faucet 34, it will be obvious that assoon as said faucet is opened, hot water will be supplied and it will not be necessary to wait until a certain amount of cold water has been drawn from the faucet. As soon as the faucet is opened, the pressure of fluid admitted to the system from pipe 1 will force the piston 4 longitudinally so as to unseat core 5 from stop 6. Consequently water will flow through said coil.

and to pipe 3 and thence downwardly to coil 22. Furthermore this shifting of the piston 4 will result in the opening of valve 14 as hereinbefore explained, thereupon causing the fuel to be ignited at the burners 24 so that before any great amount of fluid through the main coil has been withdrawn from the pipe 33 and the supplemetal coil 28, the fluid contained in the lower convolutions of the main coil 22 will be heated and will thus be drawn from the apparatus. As soon as the faucet 34 is closed, the valve 14 will close and spring 7 will return the piston 4 to its normal or closed position so that thereafter a circulation will only be setup through the pipes 33 and 35- and the supplemental coil 28.

What is claimed is:

1. Water heating apparatus including a main coil, a supplemetal coil at the lower end of and encircled by the main coil, burners for heating the main coil, means operated by the pressure of water flowing for opening the supply of fuel to said burners, a thermostat including a tubular member in communication with the main coil, mechanism controlled by the thermostat for regulating the flame from the burners, an independent burner for heating the contents of the supplemental coil, said supplemental coil being in communication at each end with the tubular member of the thermostat, a service pipe extending from' said tubular member of the thermostat, a return pipe connecting the outer end portion of the service pipe to said. tubular member of the thermostat, and 'means close to the junction of the service and return pipes for drawing off the fluid contents of the pipes.

2. Water heating apparatus including a main coil, a supplemental coil at the lower end of and encircled by the main coil, burners for heating the main coil, means operated by the pressure of water flowing through the main coil for opening the supply of fuel to said burners, a thermostat including a tubular member in communication with the main coil, mechanism controlled by the thermostat for regulating the flame from the burners, an independent burner for heating the contents of the supplemental coil, said supplemental coil being in communication at each end with the tubular member of the thermostat, a service pipe extending from said tubular member of the thermostat, a return pipe connecting the outer end portion of the service pipe to said tubular member of the thermostat, means close to the junction of the service and return pipes for drawing off the fluid contents of the pipes, and a flue partly housing the supplemental coil for conducting products of combustion from the indepe lident burner upwardly past the main co1 3. A water heating apparatus, comprising a main coil, burners for the main coil, a service pipe, a circulation medium between the service pipe and main coil, means for for admitting water to the main coil, means for admitting gas to the burners, a supplemental coil communicating with the v circuas my own, I have hereto aflixed my signalition mledium, Ian iilidepeindegt burnerlfor ture in the presence of two witnesses.

t e supp ementa coi an a. ue encirc ing the upFer end of and li ising from the supple- ADOLF BELER 5 menta coil and passing through the main Witnesses:

coil. R. A. Tnoor,

In testimony that I claim the foregoing FRED B. Fxsm 

